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Questions tagged [dovecot]

An IMAP and POP3 email server. When asking about Dovecot problems, please include relevant maillog lines and output of the following command: `doveconf -n`

Dovecot is an IMAP and POP3 server for *nix systems. It emphasizes security, and is also easy to set up and use, as well as having high performance.

More information about dovecot is available at http://www.dovecot.org/

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How to make dovecot not ask passwords from localhost?

I have set up dovecot server and I'm currently using offline imap to sync my gmail to the dovecot imap running on the localhost. Currently I'm using plain text authentication, but this results in every single mail client to ask & remember my user…
Dima
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Mail server hammering

I've noticed a quick increase on smtp connections coming to my server, investigating it further i figured out that there's a botnet hammering my smtp server. I've tried to stop it by adding a rule at iptables: -N SMTP-BLOCK -A SMTP-BLOCK -m limit…
Rod
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Linux port 25 is not working, and postfix unable to establish external connections at port 465, internal connection works with issues

I guess these are two typical issues, at least first one is. I'm trying to configure postfix dovecot on CentOS 7. First, the port 25 is open, but it is not accepting any outer connections. The internal connection at port 25 is working. I…
岁月倾城197
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Dovecot proxy with TLS client certificate authentication only fails with "no auth attempts"

Similar to my previous Q&A in which I successfully set up an authenticating Dovecot IMAP proxy with Kerberos/GSSAPI, I want to do the same with TLS client certificates; My upstream (backend) IMAP server allows to authenticate without a password…
gertvdijk
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Outlook cannot send when connected to IMAP, but it can send mail if I connect it to POP3

If I connect outlook to port 465 with the same details, but for the mailbox, if I use IMAP, it won't send. If I use POP3 for the mailbox, it is able to send. And, I have postfix and dovecot installed in my mail server. What could possibly causing…
user549144
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Thunderbird won't connect to Dovecot server

Since yesterday my Thunderbird client can't connect to my mail server but two other clients I tried have no problem to retrieve email. In my mail log file I have these lines: Nov 26 13:24:46 LinuxWebServer dovecot: imap-login: Error: SSL: Stacked…
sevynos
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How to configure dovecot as gmail imap proxy

I want to configure dovecot as gmail imap proxy. If any system in my network wants to connect to imap.gmail.com,993 it has to go through the dovecot proxy. Is it possible to setup such environment with dovecot? If yes, can you please help me to…
Supratik
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Having port 25 closed triggers error on MXtoolbox. Do I need Port 25 open for mail server to function correctly and consistently?

Environment: CentOS, Postfix, Dovecot, Digital Ocean Droplet Background: The mail server I just installed appears to send and receive normally. I tested my website on MXtoolbox and received 1 error that was related to SMTP. It was the only error…
myNewAccount
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postfix - disable users to change email username after login

I have a mail server with Postfix and Dovecot and users can send emails, but (after login) they can change the address and send from other username@example.com. For example, user1@example.com login to email via IMAP/SMTP and then he change the…
arlind
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Debugging postfix/dovecot: Finding out which application is trying to connect from localhost 127.0.0.1

The problem occurs on my mail server, which apart from that works perfectly. Clients can connect via IMAP and Postfix receives and sends out emails without any hassle. Installed software: $> dpkg --list ii postfix …
manifestor
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Someone is scanning my postfix/dovecot

There is someone scanning my mail server. What can i do to block them? i tried adding this and is not helping: /etc/hosts.deny ALL: 80.82.77.18 i see this in the log: ... Aug 23 03:34:40 auth-worker(1664): Info: sql(torcac@example.net,80.82.77.18):…
chawila
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postfix/qmgr error - connect to private/dovecot No such file or directory

I have a Ubuntu 18.0.4 bionic with postfix and dovecot and dovecot-mysql installed. Receiving the errors shown on lines 1 and 2: Jul 4 15:58:05 mailer postfix/qmgr[11870]: warning: connect to transport private/dovecot: No such file or…
Oliver Williams
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Postfix (Imap) with Dovecot: no auth available

I'm using Dovecot to get Imap access to my mail server (on Raspbian). I'm using system users and am able to successfully test logins (doveadm auth test ...). But I'm not able to get auth option via telnet: sudo telnet localhost 25 Trying…
User Rebo
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Problems importing mbox files to Dovecot sdbox with doveadm

OK, I need a couple of rep points and I'm about to pull the pin on this... I'm trying to import some mbox files into a Dovecot sdbox store using something along the lines of: doveadm -D import -u user@example.com mbox:/path/to/mbox "" mailbox INBOX…
g4rb4g3_ju1c3
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Postfix not sending emails (few problems detected)

Emails can not be sent to domains other than local. My mail server is placed behind proxy server. Ip of the proxy is: 192.168.18.1. Just to mention that I can receive all emails sent to my mail server. After sending from my mail server, all of email…
user48058
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